/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.lqq.producer;

import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.remoting.common.RemotingHelper;

public class Producer {

    private static Producer instance;

    DefaultMQProducer producer = new DefaultMQProducer("ProducerGroupName");

    private Producer(){}

    public static Producer getInstance(){
        if(instance != null){
            return instance;
        }
        synchronized (Producer.class){
            if(instance == null){
                instance = new Producer();
                instance.init();
            }
        }
        return instance;
    }

    public SendResult send(String msg){
        try {
            Message holeMsg = new Message("TopicTest",
                    "TagA",
                    "OrderID188",
                     msg.getBytes(RemotingHelper.DEFAULT_CHARSET));
            SendResult sendResult = producer.send(holeMsg);
            System.out.printf("%s%n", sendResult);
            return sendResult;

        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException("发送消息异常：",e);
        }

    }

    public void shutdown(){
        producer.shutdown();
    }

    private void init(){

        producer.setNamesrvAddr("192.168.0.104:9876");
        try {
            producer.start();
        } catch (MQClientException e) {
            e.printStackTrace();
            throw new RuntimeException("启动异常：" ,e);
        }
    }





}
